Is Orange Is the New Black's Laura Prepon Hotter With Red, Blonde, or Black Hair?

Laura Prepon may be a natural brunette, but that's not how America imagines her.

For years, most of us knew Laura Prepon as the delightfully snarky Donna on That '70sShow, where she started out sporting long red tresses that were almost as appealing as her attitude. Later in the run of the show she switched to blonde for a movie and the color stuck — both on and off screen.

But in 2013, we all saw a very different side of Laura when she broke back into the cultural spotlight thanks to her turn as the sexy, seductive Alex Vause on Orange Is the New Black. Not only was the drug dealing, woman-loving, no-nonsense tough girl a major shift from Donna, but Laura also rocked a whole new look for the part: pencil thin eyebrows, heavy glasses, and most importantly, shockingly black hair. Laura looked nearly unrecognizable on the hit Netflix show.

So now we're curious: which of Laura's iconic looks do you like best — the sassy redhead, the blonde bombshell, or the dark inmate?